Seal ring
US4185842A · kind A · utility
29Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1978 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Jul 10, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/944
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved composite seal ring is provided by making the L-shaped main seal ring and auxiliary seal ring of a thermoplastic or thermosetting synthetic resin and the ratio of the axial thickness of the thin wall portion of the main seal ring to the axial thickness of the entire composite seal ring being between 1/2 and 3/4 and the auxiliary seal ring having a radial width at least twice as large as the piston-cylinder gap and less than 4/5 the radial width of the entire composite seal ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.